公开(公告)号：US20070114544A1

公开(公告)日：2007-05-24

申请号：US10582718

申请日：2005-09-09

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L33/00

CPC分类号： H01L51/5052 ,  H01L27/3244 ,  H01L51/0062 ,  H01L51/0081 ,  H01L51/506 ,  H01L51/5068 ,  H01L51/5076 ,  H01L51/5084 ,  H01L51/5265 ,  H01L2251/5315 ,  H01L2251/5323 ,  H01L2251/558

摘要： An object of the present invention is to provide a light emitting element or a light emitting device that can be formed without any regard for a work function of an electrode. Another object of the invention is to provide a light emitting element or a light emitting device in that the range of choice for a material of an electrode can be widened. In an aspect of the invention, a light emitting device includes first, second and third layers between mutually-facing first and second electrodes. The first layer has a donor level. The second layer is a single layer or a laminated body containing a light emitting substance. The third layer has an acceptor level. When a potential of the second electrode is set higher than that of the first electrode, holes generated in the second layer are injected in the third layer.

摘要翻译： 本发明的目的是提供一种发光元件或发光器件，其可以不考虑电极的功函而形成。 本发明的另一个目的是提供一种发光元件或发光器件，其特征在于可扩大电极材料的选择范围。 在本发明的一个方面，发光器件包括在相互面对的第一和第二电极之间的第一，第二和第三层。 第一层具有供体水平。 第二层是含有发光物质的单层或层叠体。 第三层有一个接受者级别。 当第二电极的电位被设定为高于第一电极的电位时，在第二层中产生的空穴注入第三层。

公开(公告)号：US20080254318A1

公开(公告)日：2008-10-16

申请号：US10585326

申请日：2005-12-26

申请人： Harue Nakashima ,  Daisuke Kumaki ,  Kumi Kojima ,  Satoshi Seo ,  Sachiko Kawakami

发明人： Harue Nakashima ,  Daisuke Kumaki ,  Kumi Kojima ,  Satoshi Seo ,  Sachiko Kawakami

IPC分类号： H01J1/63 ,  C07D209/88 ,  C07D215/38

CPC分类号： H01L51/0059 ,  C07D209/88 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0081 ,  H01L51/5012 ,  H01L51/5048 ,  H01L2251/308

摘要： The present invention provides a material having excellent hole injecting and hole transporting properties. Moreover, the present invention provides a light-emitting element and a light-emitting device using the material having excellent hole injecting and hole transporting properties. The present invention provides a carbazole derivative represented by the general formula (1). By applying the carbazole derivative of the present invention to a light-emitting element or a light-emitting device, a lower driving voltage, enhanced emission efficiency, a longer lifetime and enhanced reliability of the light-emitting element or the light-emitting device can be realized.

摘要翻译： 本发明提供了具有优异的空穴注入和空穴传输性能的材料。 此外，本发明提供一种使用具有优异的空穴注入和空穴传输性能的材料的发光元件和发光装置。 本发明提供由通式（1）表示的咔唑衍生物。 通过将本发明的咔唑衍生物应用于发光元件或发光元件，发光元件或发光元件的驱动电压，发光效率提高，寿命更长，可靠性提高 实现。

公开(公告)号：US20070090376A1

公开(公告)日：2007-04-26

申请号：US10575202

申请日：2005-08-01

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L33/00

CPC分类号： H01L51/5221 ,  H01L51/5068 ,  H01L51/5265

摘要： It is an object of the present invention to provide a light-emitting element having, between a pair of electrodes, a layer containing a light-emitting material and a transparent conductive film, wherein the electric erosion of the transparent conductive film and reflective metal can be prevented and to provide a light-emitting device using the light-emitting element. According to the present invention, a first layer 102 containing a light-emitting material, a second layer 103 containing an N-type semiconductor, a third layer 104 including a transparent conductive film, and a fourth layer 105 containing a hole-transporting medium are provided between an anode 101 and a cathode 106, wherein the first layer 102, the second layer 103, the third layer 104, the fourth layer 105, and the cathode 106 are provided in order, and wherein the cathode has a layer containing reflective metal.

摘要翻译： 本发明的目的是提供一种发光元件，其在一对电极之间具有包含发光材料和透明导电膜的层，其中透明导电膜和反射金属罐的电蚀蚀 并且提供使用该发光元件的发光装置。 根据本发明，包含发光材料的第一层102，包含N型半导体的第二层103，包括透明导电膜的第三层104和含有空穴传输介质的第四层105是 设置在阳极101和阴极106之间，其中依次提供第一层102，第二层103，第三层104，第四层105和阴极106，并且其中阴极具有包含反射金属的层 。

公开(公告)号：US08618574B2

公开(公告)日：2013-12-31

申请号：US13161619

申请日：2011-06-16

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L27/15

CPC分类号： H01L51/5076 ,  H01L27/3244 ,  H01L51/5056 ,  H01L51/506 ,  H01L51/5068 ,  H01L51/5072 ,  H01L2251/558

摘要： The present invention provides a light-emitting element having a structure in which the drive voltage is comparatively low and a light-emitting element in which the increase in the drive voltage over time is small. Further, the present invention provides a display device in which the drive voltage and the increase in the drive voltage over time are small and which can resist long-term use. A layer in contact with an electrode in a light-emitting element is a layer containing a P-type semiconductor or a hole-generating layer such as an organic compound layer containing a material having electron-accepting properties. The light-emitting layer is sandwiched between the hole-generating layers, and an electron-generating layer is sandwiched between the light-emitting layer and the hole-generating layer on a cathode side.

摘要翻译： 本发明提供一种驱动电压相对较低的结构的发光元件和驱动电压随时间的增加小的发光元件。 此外，本发明提供了一种显示装置，其中驱动电压和驱动电压随时间的增加较小并且可以抵抗长期使用。 与发光元件中的电极接触的层是包含P型半导体或空穴发生层的层，例如含有具有电子接受性的材料的有机化合物层。 发光层夹在发光层之间，电子发生层夹在发光层和阴极侧的空穴产生层之间。

公开(公告)号：US08405070B2

公开(公告)日：2013-03-26

申请号：US12575488

申请日：2009-10-08

申请人： Yuji Iwaki ,  Satoshi Seo ,  Daisuke Kumaki ,  Harue Nakashima ,  Kumi Kojima

发明人： Yuji Iwaki ,  Satoshi Seo ,  Daisuke Kumaki ,  Harue Nakashima ,  Kumi Kojima

IPC分类号： H01L35/24

CPC分类号： H05B33/22 ,  C09K11/06 ,  C09K2211/1029

摘要： An object is to provide a light emitting element with low drive voltage which contains an organic compound and an inorganic compound. One feature of a light emitting element of the present invention is to include a layer containing a light emitting material between a pair of electrodes, in which the layer containing a light emitting material has a layer containing a carbazole derivative represented by General Formula (1) and an inorganic compound which exhibits an electron accepting property to the carbazole derivative represented by General Formula (1). With such a structure, the inorganic compound accepts electrons from the carbazole derivative, carriers are generated internally, and a drive voltage of the light emitting element can be reduced.

摘要翻译： 目的是提供一种含有有机化合物和无机化合物的低驱动电压的发光元件。 本发明的发光元件的一个特征是包括在一对电极之间含有发光材料的层，其中含有发光材料的层具有含有由通式（1）表示的咔唑衍生物的层， 和对通式（1）表示的咔唑衍生物具有电子接受性的无机化合物。 通过这样的结构，无机化合物从咔唑衍生物接受电子，内部生成载流子，能够降低发光元件的驱动电压。

公开(公告)号：US08338196B2

公开(公告)日：2012-12-25

申请号：US13196095

申请日：2011-08-02

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L21/00

CPC分类号： H01L51/50 ,  H01L27/3244 ,  H01L27/3281 ,  H01L51/0051 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0077 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5262 ,  H01L2251/558 ,  Y10S257/918

摘要： The present invention provides a light-emitting element having less increase in driving voltage with the accumulation of light-emission time, and provides a light-emitting element having less increase in resistance value with the increase in film thickness. A light-emitting element includes a first layer, a second layer and a third layer between a first electrode and a second electrode. The first layer is provided to be closer to the first electrode than the second layer, and the third layer is provided to be closer to the second electrode than the second layer. The first layer is a layer including an aromatic amine compound and a substance showing an electron accepting property to the aromatic amine compound. The second layer includes a substance of which an electron transporting property is stronger than a hole transporting property, and a substance showing an electron donating property to the aforementioned substance.

公开(公告)号：US08008652B2

公开(公告)日：2011-08-30

申请号：US10582718

申请日：2005-09-09

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L35/24 ,  H01L51/00

CPC分类号： H01L51/5052 ,  H01L27/3244 ,  H01L51/0062 ,  H01L51/0081 ,  H01L51/506 ,  H01L51/5068 ,  H01L51/5076 ,  H01L51/5084 ,  H01L51/5265 ,  H01L2251/5315 ,  H01L2251/5323 ,  H01L2251/558

摘要： An object of the present invention is to provide a light emitting element or a light emitting device that can be formed without any regard for a work function of an electrode. Another object of the invention is to provide a light emitting element or a light emitting device in that the range of choice for a material of an electrode can be widened. In an aspect of the invention, a light emitting device includes first, second and third layers between mutually-facing first and second electrodes. The first layer has a donor level. The second layer is a single layer or a laminated body containing a light emitting substance. The third layer has an acceptor level. When a potential of the second electrode is set higher than that of the first electrode, holes generated in the second layer are injected in the third layer.

摘要翻译： 本发明的目的是提供一种发光元件或发光器件，其可以不考虑电极的功函而形成。 本发明的另一个目的是提供一种发光元件或发光器件，其特征在于可扩大电极材料的选择范围。 在本发明的一个方面，发光器件包括在相互面对的第一和第二电极之间的第一，第二和第三层。 第一层具有供体水平。 第二层是单层或含有发光物质的层叠体。 第三层有一个接受者级别。 当第二电极的电位被设定为高于第一电极的电位时，在第二层中产生的空穴注入第三层。

公开(公告)号：US07964864B2

公开(公告)日：2011-06-21

申请号：US10573929

申请日：2005-09-27

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L29/06 ,  H01L31/00

CPC分类号： H01L51/5234 ,  H01L27/3244 ,  H01L51/5048 ,  H01L51/5056 ,  H01L51/5076 ,  H01L51/5203 ,  H01L51/5265 ,  H01L2251/305 ,  H01L2251/306 ,  H01L2251/308 ,  H01L2251/558

摘要： It is an object of the present invention to provide a light-emitting element having a layer containing a light-emitting material and a transparent conductive film between a pair of electrodes, in which electric erosion of the transparent conductive film and metal can be prevented, and also to provide a light-emitting device using the light-emitting element. According to one feature of the invention, a light-emitting element includes a first layer 102 containing a light-emitting material, a second layer 103 containing a material having a donor level, a third layer 104 including a transparent conductive film, and a fourth layer 105 containing a hole-transporting medium between a first electrode 101 and a second electrode 106, in which the first layer 102, the second layer 103, the third layer 104, the fourth layer 105, and the second electrode 106 are provided sequentially, in which the second electrode 106 has a layer containing metal.

摘要翻译： 本发明的目的是提供一种在一对电极之间具有包含发光材料和透明导电膜的层的发光元件，其中可以防止透明导电膜和金属的电蚀蚀， 并且还提供使用该发光元件的发光装置。 根据本发明的一个特征，发光元件包括含有发光材料的第一层102，含有施主层的材料的第二层103，包括透明导电膜的第三层104和第四层 在第一电极101和第二电极106之间包含空穴传输介质的层105，其中第一层102，第二层103，第三层104，第四层105和第二电极106依次设置， 其中第二电极106具有含有金属的层。

公开(公告)号：US20090309093A1

公开(公告)日：2009-12-17

申请号：US11371217

申请日：2006-03-09

申请人： Yuji Iwaki ,  Satoshi Seo ,  Daisuke Kumaki ,  Harue Nakashima ,  Kumi Kojima

发明人： Yuji Iwaki ,  Satoshi Seo ,  Daisuke Kumaki ,  Harue Nakashima ,  Kumi Kojima

IPC分类号： H01L51/54 ,  C09K11/06 ,  C09K11/08

CPC分类号： H05B33/22 ,  C09K11/06 ,  C09K2211/1029

摘要： An object is to provide a light emitting element with low drive voltage which contains an organic compound and an inorganic compound. One feature of a light emitting element of the present invention is to include a layer containing a light emitting material between a pair of electrodes, in which the layer containing a light emitting material has a layer containing a carbazole derivative represented by General Formula (1) and an inorganic compound which exhibits an electron accepting property to the carbazole derivative represented by General Formula (1). With such a structure, the inorganic compound accepts electrons from the carbazole derivative, carriers are generated internally, and a drive voltage of the light emitting element can be reduced.

摘要翻译： 目的是提供一种含有有机化合物和无机化合物的低驱动电压的发光元件。 本发明的发光元件的一个特征是包括在一对电极之间含有发光材料的层，其中含有发光材料的层具有含有由通式（1）表示的咔唑衍生物的层， 和对通式（1）表示的咔唑衍生物具有电子接受性的无机化合物。 通过这样的结构，无机化合物从咔唑衍生物接受电子，内部生成载流子，能够降低发光元件的驱动电压。

公开(公告)号：US07564052B2

公开(公告)日：2009-07-21

申请号：US10584333

申请日：2005-11-04

申请人： Daisuke Kumaki ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Satoshi Seo

IPC分类号： H01L35/24

CPC分类号： H01L51/50 ,  H01L27/3244 ,  H01L27/3281 ,  H01L51/0051 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0077 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5262 ,  H01L2251/558 ,  Y10S257/918

摘要： The present invention provides a light-emitting element having less increase in driving voltage with the accumulation of light-emission time, and provides a light-emitting element having less increase in resistance value with the increase in film thickness. A light-emitting element includes a first layer, a second layer and a third layer between a first electrode and a second electrode. The first layer is provided to be closer to the first electrode than the second layer, and the third layer is provided to be closer to the second electrode than the second layer. The first layer is a layer including an aromatic amine compound and a substance showing an electron accepting property to the aromatic amine compound. The second layer includes a substance of which an electron transporting property is stronger than a hole transporting property, and a substance showing an electron donating property to the aforementioned substance.

摘要翻译： 本发明提供一种随着发光时间累积而具有较小驱动电压增加的发光元件，并提供随着膜厚度的增加而具有较小电阻值增加的发光元件。 发光元件包括在第一电极和第二电极之间的第一层，第二层和第三层。 第一层被提供为比第二层更靠近第一电极，并且第三层被提供为比第二层更靠近第二电极。 第一层是包含芳族胺化合物和对芳族胺化合物显示电子接受性的物质的层。 第二层包括电子传输性比空穴传输性强的物质，和表现出对上述物质的电子给予性的物质。